vBSEO Sitemap Generator generated incorrect sitemap URL

This is what it says at the sitemap control panel:

Your Google Sitemap Index URL: DevFred's Imperium - Error 404: Invalid Request

While the generated file resides at:
http://www.devfred.com/sitemap_index.xml.gz

How can I make it pick this up? I also have my own sitemap.xml file that I created manually containing all non-vBulletin pages, but that shouldn't conflict at all.

Can you please help me out?

Hello,

what is your forum URL defined in vB admincp options?
It should be:

Code:

http://www.devfred.com

Thank you, don't know how I made this mistake.